Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to https://gcn.nasa.gov.
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 6409

Subject
GRB 070512: pseudo-z ~ 1.39 from prompt emission spectrum
Date
2007-05-15T08:25:16Z (17 years ago)
From
Alexandre Pelangeon at LATT,OMP,Toulouse <alexandre.pelangeon@ast.obs-mip.fr>
A. Pelangeon & J-L. Atteia (LATT-OMP) report:

We have used the spectral parameters obtained with the Konus
spectrum of the bright burst GRB 070512 (Golenetskii et al., GCNC 6408)
to compute the spectral pseudo-redshift(**) of this burst
localized by the IPN Network.

We obtain: pz= 1.39 +/- 0.20

As this redshift estimator is partly based on the Amati relation,
we caution that this pseudo-redshift might be wrong
if GRB 070512 is a short-hard burst.


(**) cf. http://www.ast.obs-mip.fr/grb/pz
Looking for U.S. government information and services? Visit USA.gov